Working for me also. Seems to be one of the rare cases where the “down for some people” in a status page actually does mean “some”. Recently when Microsoft 365 was offline for all email services they reported it as a “limited degradation”.
fastmailstatus is updated by humans
So are most big-tech status pages, which is why they often fail to report the outage for a long time.
Yeah the status says “partial service degradation” but the title lured me in with its encompassing “down”